Home / 356,378.16-491,801.82-213,138.18

Finding the Fourth Proportional to 356,378.16, 491,801.82 and 213,138.18

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Solution

The fourth proportional to 356,378.16, 491,801.82 and 213,138.18 is: 294,130.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,378.16 : 491,801.82 = 213,138.18 : x
  2. Step 2: Convert to fraction form
    356,378.16/491,801.82 = 213,138.18/x
  3. Step 3: Cross multiply
    356,378.16x = 491,801.82 × 213,138.18
  4. Step 4: Simplify right side
    356,378.16x = 104,821,744,835.49
  5. Step 5: Solve for x
    x = 104,821,744,835.49/356,378.16
  6. Step 6: Final answer
    x = 294,130.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.